/Engine/Plugins/Experimental/ModularGameplay/Source/ModularGameplay/Public/Components/GameFrameworkComponentManager.h
Sends an arbitrary extension event that can be listened for by other systems
static void SendGameFrameworkComponentExtensionEvent ( [AActor](API\Runtime\Engine\GameFramework\AActor) * Receiver, const [FName](API\Runtime\Core\UObject\FName) & EventName, bool bOnlyInGameWorlds )